JAMES WILLIAM OCONNOR MD
NPI 1891752572
Internal Medicine in North Falmouth, MA
About James William Oconnor Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES WILLIAM OCONNOR MD (NPI 1891752572) is an individual internal medicine provider in North Falmouth, Massachusetts, licensed in Massachusetts (49959) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
James William Oconnor Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show James Oconnor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 423 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02556 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 24
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is James Oconnor's NPI number?
The NPI number for James Oconnor is 1891752572. It was assigned to this individual provider in the NPPES registry on April 27, 2006.
Where is James Oconnor located?
James Oconnor practices at 33 Edgerton Dr, North Falmouth, MA 02556. The listed phone number is (508) 778-4777.
What is James Oconnor's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is James Oconnor enrolled in Medicare?
Yes. James Oconnor is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for James Oconnor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Oconnor reassigns Medicare benefits to Medical Affiliates Of Cape Cod, Inc. (Hyannis, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Oconnor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for James Oconnor was last updated on June 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.